Editor’s note: This item has been updated to reflect additional developments on security guarantees from U.S. officials.

BRUSSELS, Belgium — European leaders are set to meet to coordinate the next steps on security guarantees for Ukraine after high-level talks in Washington, as diplomatic efforts intensify ahead of a possible trilateral summit involving Kyiv and Moscow.

Following the White House talks, they are expected to reconvene in multiple formats over the coming days to align positions b